G2L1A1S1S1P3A1P3E1R1I1N1G2
19 points
GLASSPAPERING is validvalid
GLASSPAPER,
GLASSPAPER, to sand with glasspaper (an abrasive composed of quartz granules on a paper backing)
GLASSPAPER,
GLASSPAPER, to sand with glasspaper (an abrasive composed of quartz granules on a paper backing)